【摘要】 随着GIS向三维领域的不断发展,三维GIS中实体目标的数据获取和建模显得越来越重要。以三维GIS中的建筑物作为研究对象,分别从建筑物的各类数据的获取方法和模型建立技术等方面进行了深入分析,并着重介绍了基于数字地图资料的数据获取和建模方法。更多还原

【Abstract】 With the incessant development of GIS towards three dimension,the data acquirement and modeling of the object in3D GIS become more and more important.This paper regards the buildings in3D GIS as research targets,deeply analyses the technology of data acquirement and modeling of the building,and introduces new method of data acquirement and modeling on the base of digital map da-tum in detail.更多还原